enil ono nigd vd esergsb mio sign sdi staluolas mmo od mi 16. In the triangle shown a = 9 cm, b = 18 cm, and c = 25 cm. Define a, b, and c as variables, and then: Ons a C (a) Calculate the angle a (in degrees) by substi- tuting the variables in the Law of Cosines. (Law of Cosines: c² = a² + b² - 2abcosy) (b) Calculate the angles ß and y (in degrees) onsly using the Law of Sines. Info maisa (c) Check that the sum of the angles is 180°..0 = 4S-SE1+ (ES+x Y BAB d a C b
enil ono nigd vd esergsb mio sign sdi staluolas mmo od mi 16. In the triangle shown a = 9 cm, b = 18 cm, and c = 25 cm. Define a, b, and c as variables, and then: Ons a C (a) Calculate the angle a (in degrees) by substi- tuting the variables in the Law of Cosines. (Law of Cosines: c² = a² + b² - 2abcosy) (b) Calculate the angles ß and y (in degrees) onsly using the Law of Sines. Info maisa (c) Check that the sum of the angles is 180°..0 = 4S-SE1+ (ES+x Y BAB d a C b
Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE:
1. Give the measures of the complement and the supplement of an angle measuring 35°.
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Transcribed Image Text:11°C
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16. In the triangle shown a = 9 cm, b = 18 cm, and
c = 25 cm. Define a, b, and c as variables, and
then:
Q Search
HuraV X
(a) Calculate the angle a (in degrees) by substi-
tuting the variables in the Law of Cosines.
a² + b² - 2ab cosy)
(Law of Cosines: c²
(b) Calculate the angles ß and y (in
using the Law of Sines. Inio
onsig
(c) Check that the sum of the angles is 180°.
▸ (103)
degrees)
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2:06 PM
3/24/2023
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